Relationship of Sweetpotato Yield and Quality to Amount of Irrigation

A line-source irrigation design was used to provide continuously increasing amounts of irrigation at each application to sweetpotato [Ipomoea batatas (L.)Lam]. Marketable yields increased with applied irrigation amounts until a total water application of 76% of pan evaporation (E pan ) was reached and then decreased rapidly with applied irrigation amounts. Weight loss and decay of roots during storage showed quadratic responses to irrigation amounts and were minimal at the irrigation level of maximum yields (...)